Sectional needle bed for flat-v knitting machines



Dec. 30, 1952 G. ZIELINSKI 2,623,372

S ECTIONAL NEEDLE BED FOR FLAT-V KNITTING MACHINES Filed Aug. 25, 1949 2 swans-4mm 1 GEORGE ZIELINSKI INVENTOR FIGJ ATTORNEY- Dec. 30,1952 G. ZIELINSKI 2,623,372

SECTIONAL NEEDLE BED FUR FLAT-V KNITTING MACHINES FIG.4

GEORGE zlaLmskl INVENTOR EWM ATTORNEY Patented Dec. 30, 1952 UNITED STATES PATENT OFFICE SECTIONAL NEEDLE BED FOB, FLAT-V KNITTING MACHINES 3 Claims.

This invention relates to a flat double bed-V knitting machine having needles with straight body portions, and an object of this invention is to enable a sectional needle bed to be built, to permit straight knitting machines to be changed from one gauge to another, to permit replacement or worn or broken sections, and to improve the construction and operation of straight knitting machines.

An object of this invention is to provide a flat built-up needle bed made of stamped spring steel stock, whereby when any portion of the needle bed becomes worn it may be replaced by new sections to form a perfectly good needle bed.

In prior attempts to provide a built-up flat needle bed four parts were required for each needle, with the result that the parts were too thin for practical purposes and the machines would not stand up for any length of time.

I have found it possible to combine the sinker section and the divider section in a single piece, the front end of the sinker section being reduced in size to form a yarn aligning tooth which may be very thin because of its very short length and because it is not subjected to wear. The tooth takes the place of the former very thin divider section. I am thus enabled to use only two parts in coacting relation with each needle.

It is well known in the art that needle beds become worn usually near their middle, and the entire needle bed has to be discarded, while all but the worn portion is still usable. If practical means can be devised to avoid the necessity of discarding partly worn needle beds, great economy will. result.

With the above and other objects in view, the invention will be hereinafter more particularly described, and the combination and arrangement of parts will be shown in the accompanying drawings and pointed out in the claims which form part of this specification.

Reference will now be had to the drawings, wherein like numerals of reference designate corresponding parts throughout the several views, in which:

Figure l is a partial plan view of a fragmentary portion of a sectional needle bed for a fiat-knitting machine embodying the invention.

Figure 2 is an elevation of a combined sinker and tooth section of the sectional needle bed shown in Figure 1.

Figure 3 is an elevation of a needle rest section.

Figure 4 is an end elevaticnal view of the needle bed shown in partial form in Figure 1, one of the sinker sections being removed.

In the illustrated embodiment of the invention, the numeral It! indicates the frame of the flat-V knitting machine, comprising two dovetail bars H which are suitably fixed to opposite sides of the needle bed and constitute the supports for the two needle beds.

Each needle bed is built up of a plurality of needle rest sections [2, and a plurality of sinker sections [3. A plurality of yarn carrying needles M are suitably placed into the bed. Each section I 2 and E3 has a dovetailed recess l5 by means of which the sections are mounted on the dovetail bars ll. Only one rest section l2 and one sinker section l3 are required with each needle. The sections are strung upon threaded rods 16. The sections l2 and I3 are clamped firmly together by nuts l1 pressing against heavy end blocks I8 to form a solid bed. The threaded rods i5 pass through clearance holes 19 in the sections i2 and I3.

Each sinker section I3 has a dovetailed recess 2@. The recesses 20 are in alignment and form guideways for needle slides 2| which hold the needles down on the assembled needle bed.

Each sinker section l3 has a further dovetailed recess 22. The recesses 22 are in alignment and form guideways for a gib 23 which holds the needles in the lowest knitting position.

The front end of each sinker section I3 is cut away on both sides and reduced in thickness to form a yarn aligning tooth 25 which may be very thin due to its short length and because it is not subjected to wear.

Each of the teeth 25 has an aperture 26 through which an elongated wire 21 is threaded. The elongated wire 21 provides means for uniformly starting all the stitches in alignment.

Each sinker section [3 also has a dovetail shaped cutout 28 at one end. The cutouts 28 are in alignment and serve to receive a bar (not shown) for holding springs for the needles M.

In accordance with the patent statutes I have described and illustrated the preferred embodiment of my invention, but it will be understood that various changes and modifications can be made therein without departing from the spirit of the invention as defined by the appended claims.

I claim:

1. In a flat double bed-V knitting machine having needles with straight body portions, a built up bed, a plurality of needle rest sections, a plurality of unitary sinker and divider sections, each of said sinker sections having their front portions reduced in thickness to form a tooth for aligning yarn, said sinker and divider sections being considerably thicker than said needles, each of said sections having a dovetailed recess, a dovetailed key extending lengthwise or" said bed on which said sections are slidably and removably mounted, a gib, each of said sinker and divider sections having a further dovetailed recess, said recesses being in alignment and form guideways for said gib serving to hold said needles in the lowest knitting position, and means securing said sections in operating positions.

2. In a flat double bed-V knitting machine having needles with straight body portions, a built up bed, a plurality of needle rest sections, a plurality of unitary sinker and divider sections, each of said sinker sections having their front portions reduced in thickness to form a tooth for aligning yarn, said sinker and divider sections being made of spring steel and considerably thicker than said needles, each of said sections having a dovetailed recess, a dovetailed key extending lengthwise of said bed on which said sections are slidably and removably mounted, a gib, each of said sinker and divider sections having a further dovetailed recess, said recesses being in alignment and form guideways for said gib serving to hold said needles in the lowest knitting position, and means'securing said sections in operating positions.

3. In a fiat double bed-v knitting machine having needles with straight body portions, a built up bed, a plurality of needle rest sections, a plurality of unitary sinker and divider sections, each of said sinker sections having their front portions reduced in thickness to form a tooth for aligning yarn, said sinker and divider sections being made of spring steel and considerably thicker than said needles, each of said sections having a dovetailed recess, a dovetailed key extending lengthwise of said bed on which said sections are slidably and removably mounted, a gib, each of said sinker and divider sections having a further dovetailed recess, said recesses being in alignment and form guideways for said gib serving to hold said needles in the lowest knitting position, and means securing said sections in operating positions, the front end portion of each sinker section being reduced in thickness to form a tooth, each tooth having an aperture permitting an elongated wire to be threaded therethrough, said wire forming means for uniformly starting all the stitches in alignment.

GEORGE ZIELINSKI.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 516,960 Bosi Mar. 20, 1894 1,210,108 Schwartz Dec. 26, 1916 FOREIGN PATENTS Number Country Date 21,353 Great Britain Dec. 14, 1895 266,301 Germany Oct. 21, 1913 

